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US Patent: 1,069,614
Automatic Combination Tool Holder
Patentees: Christian F. Heinkel (exact or similar names) - Cleveland, Cuyahoga County, OH William G. Lueters (exact or similar names) - Cleveland, Cuyahoga County, OH USPTO Classifications: 279/103 Tool Categories: metalworking machines : drilling and boring : drilling and boring tool holders Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 13, 1909 Granted: Aug. 05, 1913 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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